Home Energy Efficiency Consultants helps builders, homeowners, architects, and contractors across Massachusetts with HERS ratings for new construction, renovations, additions, energy code compliance, rebates, and final testing.
A HERS rating is one of the main tools used to measure and document the energy performance of a home.
The HERS Index, or Home Energy Rating System Index, is the nationally recognized system used to inspect and calculate a home’s energy performance. Lower scores indicate better energy performance. A certified rater reviews the home design, insulation levels, windows, HVAC, water heating, air leakage, and other energy-related features to calculate a score and verify field conditions during construction.
For many Massachusetts projects, a HERS rating can be an important part of energy code compliance, rebate pathways, design decisions, and final project verification. It also helps teams identify where efficiency gains can be made before construction mistakes become expensive.
The HERS scale is designed so lower numbers represent a more efficient home. This makes it easier to compare design options and understand the impact of upgrades before final construction.
On the HERS Index, a 1-point change represents about a 1% change in energy use, which is why small design adjustments can make a real difference in performance.
A HERS rating is not just software. It also depends on inspections and testing, including blower door testing and, when needed, duct leakage testing to verify what was actually built.
Wall, roof, floor, slab, insulation, and window specifications all affect the home’s thermal performance and final score.
Heating, cooling, water heating, and ventilation equipment are reviewed to understand efficiency, sizing, and overall energy impact.
Blower door testing is used to measure airtightness, and duct testing may be used when duct leakage verification is required.
Using a HERS rating early in the design process helps avoid costly last-minute changes. It gives clearer direction on insulation packages, window performance, mechanical selections, ventilation strategy, and air sealing targets. It can also help keep the project aligned with rebate opportunities and energy code expectations before permits, rough inspections, or final testing become a problem.
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Real feedback from homeowners, builders, and contractors who used our HERS rating and related energy services.
A HERS rating measures a home’s energy performance by evaluating major components such as heating, cooling, water heating, insulation, windows, air leakage, lighting, and related energy loads.
Blower door testing is used to determine how much air is entering or escaping from the home. That testing helps measure airtightness and identify leakage areas that affect comfort, efficiency, and code compliance.
Yes. Massachusetts programs can include incentives for qualifying new construction as well as for eligible renovations and additions. The available pathway depends on the project type, program rules, and installed efficiency measures.
Yes. Preliminary modeling helps spot issues early so teams can adjust insulation packages, windows, HVAC selections, water heating, ventilation, and air sealing details before final testing.
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Call Home Energy Efficiency Consultants for HERS ratings, blower door testing, duct testing, and energy code guidance across Massachusetts.
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